Agricola, Georgius, De re metallica, 1912/1950

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb pagenum="484"/>
            <figure number="255"/>
            <p type="caption">
              <s>A—PESTLE WITH TEETH. B—PESTLE WITHOUT TEETH. C—DISH OR TRAY FULL OF ASHES.
                <lb/>
              D—PREPARED TESTS PLACED ON BOARDS OR SHELVES. E—EMPTY TESTS. F—WOOD.
                <lb/>
              G—SAW.
                <lb/>
              little powder is again moistened, and thrown into the test, and tamped; this
                <lb/>
              work is repeated until the test is entirely full of the powder, which the
                <lb/>
              master then cuts out with a knife, sharp on both sides, and turned upward at
                <lb/>
              both ends so that the central part is a palm and a digit long; therefore it is
                <lb/>
              partly straight and partly curved. </s>
              <s>The blade is one and a half digits wide,
                <lb/>
              and at each end it turns upward two palms, which ends to the depth of a
                <lb/>
              palm are either not sharpened or they are enclosed in wooden handles. </s>
              <s>The
                <lb/>
              master holds the knife with one hand and cuts out the powder from the test,
                <lb/>
              so that it is left three digits thick all round; then he sifts the powder of dried
                <lb/>
              bones over it through a sieve, the bottom of which is made of closely-woven
                <lb/>
              bristles. </s>
              <s>Afterward a ball made of very hard wood, six digits in diameter,
                <lb/>
              is placed in the test and rolled about with both hands, in order to make the
                <lb/>
              inside even and smooth; for that matter he may move the ball about with only
                <lb/>
              one hand. </s>
              <s>The tests
                <emph type="sup"/>
              40
                <emph.end type="sup"/>
              are of various capacities, for some of them when prepared </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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